$progress: () !default;
$progress: map-merge(
    (
        background: #0097e6,
    ),
    $progress
);
$background: map-get($progress, background);

#nprogress {
    .bar {
        background: $background !important;
    }
    .peg {
        box-shadow: 0 0 10px $background, 0 0 5px $background !important;
    }
}
